Published November 1994 | Version v1
Journal article Metadata-only

Modelling of radial electric fields and currents during divertor plate biasing on TdeV

Creators

  • 1. Centre Canadien de Fusion Magnetique, Varennes, PQ (Canada)

Description

A simple model based on non-ambipolar radial transport and planar sheath physics is used to describe the generation of radial electric fields and currents in the scrape-off layer of the Tokamak de Varennes (TdeV) during divertor plate biasing. In general, the calculated predictions compare favourably with TdeV results over a variety of plasma conditions and divertor magnetic configurations. Validated by the experiment, the model is used to study the scaling laws of perpendicular ion mobility and to test existing related theories. Finally, the model is proposed as a useful tool for the design and upgrade of biased divertors through optimization of the plate and throat geometry. (author). 35 refs, 16 figs, 1 tab

Additional details

Publishing Information

Journal Title
Nuclear Fusion
Journal Volume
34
Journal Issue
11
Journal Page Range
p. 1431-1445.
ISSN
0029-5515
CODEN
NUFUAU

INIS

Country of Publication
International Atomic Energy Agency (IAEA)
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
26018843
Subject category
S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
BOUNDARY CONDITIONS; CURRENT DENSITY; DESIGN; DIVERTORS; ELECTRIC CONDUCTIVITY; ELECTRIC FIELDS; ELECTRIC POTENTIAL; ION MOBILITY; MATHEMATICAL MODELS; PLASMA DENSITY; PLASMA RADIAL PROFILES; PLASMA SCRAPE-OFF LAYER; SCALING LAWS; THEORETICAL DATA; VARENNES TOKAMAK
Descriptors DEC
BOUNDARY LAYERS; CLOSED PLASMA DEVICES; DATA; ELECTRICAL PROPERTIES; INFORMATION; LAYERS; MOBILITY; NUMERICAL DATA; PARTICLE MOBILITY; PHYSICAL PROPERTIES; THERMONUCLEAR DEVICES; TOKAMAK DEVICES